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Joe Marconi

Never Assume: Not-So Routine ABS Problem

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A few weeks back a customer came in complaining that, at times, when he applies the brakes lightly the ABS would come on. He was sure that he was on firm ground, not skidding. We dispatched the job to one our diag techs. He performed his routine visual inspection and then hooked up the scanner for a road test. The tech clearly observed, thru the scanner, that the left front signal was dropping out at times. Having seen countless issues with GM wheel bearing/hub/ABS components, he advised the service writer to order a new wheel hub.

 

After the new part was installed, the tech performs a final road test only to find that the problem is still there. Is it a defective part? After reviewing the process, I instructed the tech to hook a scope right to the left wheel sensor and monitor the signal at the wheel and also monitor what the computer was seeing. Sure enough, the signal at the wheel never faulted, but the computer was seeing something else.

 

We opened up the harness, which is fastened to the suspension, and found a tiny break in the harness which was flexing when the brakes were applied. A new left side ABS harness fixed the problem.

 

The lesson: Never assume; when we see pattern failures over and over again, it can lead us down the wrong path. Always stick to the basics.

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  • Similar Forum Topics

    • By Joe Marconi
      I have never met a shop owner who didn’t have the desire to be successful. People go into business with dreams of changing the world and to make a positive influence in the industry to which they have dedicated their lives. They’re devoted, sacrifice time away from family and, at times, drive themselves to exhaustion—all in an effort to become the best they can be and make their mark. However, all too often, something happens along the way and the business begins to suffer.
      While shops owners may start their business with passion and vision, they tend to create a world in which everything revolves around them. When the business is small, the owner pays careful attention to every detail. Every car is repaired with the highest degree of excellence. Quality time is spent with each customer and a bond is created, which gets stronger and stronger as the years pass.
      As the business begins to grow, the owner realizes that the amount of work to be accomplished each day is overwhelming and hires more employees. Everyone is working, but not necessarily with the same culture the owner has. They do their job, but they are not really aligned with the goals and vision of the owner. The shop owner continues to work on his or her skills, learning everything that is needed to run a successful business. After a number of years, the shop owner becomes skilled at running a shop and proficient in nearly every aspect of business, except one: the area of people. And that is when the downward slide begins.
      The owner recognizes that, in spite of the dedication to excellence, things are not right. The shop owner has established the goals of the company and put everything in place. Everything is attainable. But it’s not working. Frustration sets in, and it’s not long before the owner begins to complain about the lack of performance and drive from the employees, which is the perceived root of the problem.
      Well, the root of the problem is the owner. We all know that running a business is not a walk in the park, but if your business is struggling, you, personally, are struggling. If your people are not performing the way they should, then you are not performing the way you should. Granted, there are employees that are a problem, and if that’s the case, they need to go. But even superstar employees will turn sour under poor leadership.
      There are endless issues and problems you encounter each and every day, and some of those problems are out of your control. But, excluding a cataclysmic event, you can trace most of your problems back to you. You are the shop owner, you are the leader. The strength of your business begins and ends with you. Given two equally talented ball teams, the difference between winning and losing is usually leadership.
      Employees need to know you care about them. The people you employ have vision and goals, too. Not the same as yours, but real nonetheless. One of your jobs, as leader, is to align their goals with yours.
      We throw this leadership term around a lot these days, and for good reason. It’s the most powerful skill you have in terms of getting the results for which you are looking. The horrible truth is there are too many bosses and not enough leaders. Anyone can be a boss. Bosses order people around. And people will follow, but not for the long term. A leader motivates others by understanding what drives the individual. A leader gives credit to others, never seeking gain at the expense of others.
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      This story was originally published by Joe Marconi in Ratchet+Wrench on October 1st, 2018


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    • By Gonzo
      Growing Up With Wrenches

      Unlike kids of today, my childhood was long before video games and color TV. Most of my free time was spent climbing trees, playing in the crick (creek, to you city folk), riding my bike, and tinkering with anything that had a motor. Wrenches, sockets, and screwdrivers were just part of growing up. I would tear apart an old mower just to see what was inside. Most of the time it would end up in a pile of parts. But, by the time my dad came to see what I was doing, he would stand there in disbelief and just shake his head. Then dive in and show me how to put it all back together. Good times for sure. There was no You Tube, no on-line help. Just dad and son, and I’m sure it’s the same way my dad learned his tinkering abilities too.

      These days it’s all about the computer with their programs and the internet with its billions of websites. There aren’t as many kids that I know about who spend their summer vacations building tree houses or turning an old horizontal lawn mower engine into a homemade go-kart like I used to do. Times have changed, but the need for those wrenches are still as important as it was back in my youth. However, now a lot of those early learned skills have to be developed through a trade schools or at a high school shop class. That is if the economy hasn’t budgeted the shop class out of existence.
      Growing up with wrenches was just something I did. Which is probably what led me to enter the automotive field as a career. It’s a good living, and you get to meet a whole lot of wonderful people every day.

      But, as it has been for decades, there’s still a big shortage of mechanics out there. As I see it, the big problem isn’t so much a people shortage, but a shortage in “qualified” mechanics. I look at it this way. Back in the day of carburetors and vacuum modulated transmissions a lot of guys and gals didn’t go to any school to learn the trade. Most picked up bits and pieces of how things worked through on the job training. The older mechanics would teach the younger ones and so on and so on. But, all of a sudden the average age of the “qualified” and “experienced” mechanic is well over 50 years old. Somewhere along the line less and less of the younger generations wanted to pursue a career in the automotive field.

      What happened? From my point of view, I see a few things that might have been the cause. First off, the computer age. Cars went from points and condensers to electronic ignition, then onto the full blown electrical nightmare we have today. The older generation of mechanics all had a similar background working with hand tools and could understand the basic principles of an automobile. But, as the industry changed to more and more electrical systems their knowledge base dwindled.

      The smart guy who wanted to stay up with all of these changes did what was needed, and that’s study as much as possible. While the other guy who was still stuck with the learn as you go method would just slap part after part on until they got it right, and yes, there are a lot of “guessers” still in the business today. Now, the car wasn’t as simple as it was before, and the average dad wasn’t able to tinker on his family car as past generations could. But, the change to the computer age isn’t the only reason that caused this shortage of qualified mechanics. Ultimately it comes down to the amount of time and effort to learn these new systems, the amount of investment one has to put into it all and most importantly their overall income.

      The average professional mechanic has well over $100,000.00 invested in personal hand tools, tool boxes, and testing equipment over the course of their career. But, the pay varies as much as the diagnostic fee does from shop to shop. So, maybe part of the problem for the new techs coming into the business is NOT making the decision to start a career in the automotive repair trade but, making the investment in the tools when the pay isn’t all that great.

      So, where does all this low wage, high investment come from? The investment into tools is an easy one to figure out. But, the wage side of it is a bit more complicated. Let’s face it, all those shops that feel the best way to keep work in the shop is by having the lowest hourly rate is the real problem. Nearly all consumers make the general assumption that all mechanics are the same and that price is their only factor to be concerned with.

      In my opinion, right there is the real problem. Instead of shouting about a shortage of mechanics, which by “body count” their certainly isn’t a shortage we should be talking about doing something for the consumer. By starting at the bottom with those low rate/low skill shops and pulling them up to a more qualified level of expertise.

      Look at the attendees of any one of the trade schools or college based courses and you’ll see that there is a turnaround in the quality of the mechanic field just waiting to happen. But, nothing like growing up with wrenches. It’s the tech schools and the attrition of the parts swapper shops that’s going to make the changes. The tech schools allow an individual not only to learn those same skills I learned growing up with wrenches but an even more importantly the skill needed to be a qualified mechanic and whether or not this trade is right for you.

      It not going to be easy to make sense of all the information and skills that the future mechanics will need to know. They’ve got to be a whole lot more aware of so many different systems than what a few hand tools can help with. But, there’s still a place for the right person with the right kind of natural mechanical ability especially if they have those growing up with wrenches skills. There still out there, but some of them don’t know they have those gifted skills because they didn’t have the opportunity to experience any of it in their youth. Then again, the trade schools have their hands full teaching the basic hand to eye coordination, as well as bringing the students up to speed with the latest greatest electronics, so someone with that natural talent will likely shine through.

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    • By Gonzo
      Going on a Diet

      “I’ll have two Fords, a Dodge, and one Toyota please. Oh, and I could go for a Cadillac later on.” The more trucks I repair, the more I’m apt to want to do more. One of these days I might have to seriously think about going on a diet. Too much to know, too much to do, and I’m not getting any younger. I’m not sure what they say about old dogs and new tricks is true, but they forgot to mention about adding on pounds slows ya down. However, with cars and trucks, the size changes, the horse power level changes, fuel economy, and luxury items all go through improvements each year. Nothing slows down the advancement of technology, not even a few extra pounds.
       
      In the automotive world, technical and mechanical changes are a constant thing. For me keeping up with those changes is like going to the gym. It’s a constant physical, as well as mental effort that can wear a guy down with all the new stuff he needs to know, the systems variations, and the amount of work needed to get to certain components.
       
      I’m not ashamed to admit that I’ve put on a few pounds over the past 3 decades. I started out as a skinny kid and now, well… ain’t no kid anymore, and I sure ain’t skinny either. But have ya noticed the shape and size of the cars over the years seems to gain weight too? Then, a few years later they’re back on some sort of diet? Model T’s were small compared to the modern car. But, by the time the 40’s and 50’s came along the size of the car had increased. The model T was squarer and boxy looking compared to the more rounded body lines of the cars from the 40’s and 50’s. Well… except for those tail fins, but that’s a whole different story.
       
      The look of the car changed again in the 60’s too! The styles seemed to reflect both rounded and straight designs, and the weight of the average car was a lot less than the older models. Then, by the late 70’s and 80’s car styling was back to the sharp edged crisp body lines, and the cars seemed to be on a different type of diet; this one was more of a fuel economy and emission diet. Of course, I don’t know for sure but, whatever the reason you could certainly tell the difference. Do you remember the Mustang Ghia II? Was that even fair to call it a Mustang? That was one car that wasn’t so much on a diet but more of an anemic excuse for a car.
       
      Seems every decade or so designers and engineers go on some sort of diet and scale back cars to smaller and smaller models, but later on the size and shapes grow again. Along with the size changes, seems nobody can settle on what is a standard, economy, or compact size. What was once a compact size turns into the standard size and the economy car becomes more of a compact. I’ll never figure it all out myself. But, somewhere along the way they give up on the diet and all the designs fatten up again. Just look at the standard pickup over the last few decades.
       
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      So what’s next? Are the engineers going to go back on that diet and start coming up with skinnier, sleeker designs? Or, are they going to keep adding more and more to them until they’re all so huge that the salesman has to bring out a step ladder just so you can go on a test drive? Where’s it all end?

      All this getting bigger and better has led to some changes at the repair shop, too. Some shops aren’t equipped to remove the cab of a truck to do some of the service work. It’s kind of a forced diet in a way. But, there are several other reasons shops today have gone to this regimented diet, and it’s not all because of the size either.

      One reason for this self-imposed diet is the cost of the various scanning equipment to properly repair these over inflated computers on wheels. Not only are the prices varied, but the monthly/yearly fees to keep that tool up to date is another issue, and as technology advances so does your scanner inventory. Even though the scanner you have now is in perfect working order, the cars that it was designed to service have started to dwindle from the highways.

      Technology doesn’t just bring changes for the consumer, but for the mechanic as well. New systems, new ways of doing old things, and new equipment are just a small part of the changes that occur. There seems to always be a newer design that mimics an older system although more stream lined efficiency. Very seldom do things remain the same. The way I’ve got it figured, there’s a mild change every five years and a more dramatic change in technology about every ten years.

      The engineers and designers may do what I plan on doing, and that’s go on a diet. But, we all know… most diets don’t last long, and I’ll eventually put all the weight back on that I lost… and then some. If the history of the automotive world is any example of what may come in the future with the next generation of truck designs… the results may end up just like my diet. Go figure…
       
       
       
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    • By Joe Marconi
      There’s no denying it, we have technician shortage problem. In fact, we have a shortage in the country in all the skilled trades. And unless we solve this issue, we will find it very difficult to conduct business.
       
      We can blame this problem on many things, but the time to assign blame is long gone and serves no useful purpose. The only issue remaining is what to do about it.
       
      Here are few thoughts. Please read them and please think about your own shop and your own personal obligation to the industry. And of course, let us engage in an open discussion on this issue.
       
      1. Do all you can to become profitable. Yes, profit, that’s one of your responsibilities as a business owner. The other reasons for profit: to be able to pay yourself and your employees the income you and your employees deserve. Also, the more profitable you become, the more you can offer benefits. Let’s limit the discounting and charge accordingly. Also, we need to attract qualified people to our industry. That means, we need to offer a competitive wage with the opportunity to advance.
      2. Shop owners, think of yourselves as professionals and conduct yourself in that manner.
      3. Create a work environment where people enjoy their work and help to attract quality young people
      4. Reach out to your local high schools and give career presentations
      5. Reach out to all the trade schools and community colleges that offer automotive programs. Let them know that the independent shops need their graduates. Also, check into returning military veterans and retiring veterans.
      6. Create an internship program that allows young people in your community to shadow your seasoned technicians. Mentor these young people
      7. Create an apprentice program for entry level techs. Many shops are already doing this. An apprentice spends time in shop for a pre-determined length of time. He or she is then offered a position in your shop or is helped to find employment elsewhere
      8. Become active in your community career fairs and career days at high schools
      9. Lastly – Please reread bullet point number 1
       
      There’s my list, please let me know your thoughts and what would you add to this list.
       
      Let’s act today, so we can secure our future!
    • By Joe Marconi
      A customer came to us with an o2 sensor he said was diagnosed somwhere else. He also brought us internet documentation on the error code and the most likely cause is the o2 sensor.
       
      My manager recommned to first properly diagnosis the problem, before we throw parts at it. He erupted in anger and said, "It's already diagnosed, put in the part like I requested!"
       
      Well, we did and guess what? That's right, the check engine light is still on with the same error code.
       
      We called him to tell him. After 2 days of thinking about it, he gave us authortization to go ahead with the diagnostic testing.
       
      I made this post because I know everyone can relate to this situation.
       
       
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